The influence of radioactive source decay on measuring error of the isotope instruments is analysed. The valuable conclusion for designing the circuit of instrument is obtained.
分析了采用不同率表电路的同位素仪表因放射源的衰减而对仪表测量误差的影响，得出了对仪表电路设计有参考价值的结论。
The designing idea, testing principle and realization of electric circuit about the two - frequency eddy testing instrument WFL for aluminum alloy quality inspection are introduced.
论述了用于铝合金质量检测的WF L双频涡流检测仪的设计思路、检测原理和电路实现。
The designing idea, testing principle and realization of electric circuit about the two - frequency eddy testing instrument WFL for aluminum alloy quality inspection are introduced.
论述了用于铝合金质量检测的WF L双频涡流检测仪的设计思路、检测原理和电路实现。
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